Combination boiler and still



R. S. MEARS.

COMBINATION BOILER AND STILL.

APPLICATION FILED JAN. 2, 1919.

Patented May 11, 1920.

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Illllllllllllll I l l I l llllllllllu\ lllllllllllllllll QywENToR BY W ATTORNEY ROBERT s. MEARS, or ARKANSAS cITv, KANSAS.

COMBINAT ON BOILER AND STILL.

Specification Of Letters Patent.

Patented May 11, 1920.

Application filed January 2, 1919. Serial No. 269,254.

To all whom it may concern.-

Be it known that I, ROBERT S. MnARs, a citizen of the United States, residing at Arkansas City, in the county of Cowley and State of Kansas, have invented a certain new and useful Improvement in Combination Boilers and Stills, of which the following is a specification.

My invention relates to improvements in combination boilers and stills.

The object of my invention is to provide a combination boiler and still which is compact, simple in construction, cheaply manue fractured and eiiicient in operation.

The novel features of my invention are hereinafter fully described and claimed.

In the accompanying drawing which illustrates the preferred embodiment of my invention,

Figure 1 is a view partly in side elevation and partly broken away, of my improved apparatus.

Fig. 2 is an enlarged vertical sectional view 01 a portion of the boiler and casing.

Fig. 3 is an enlarged vertical sectional view of a portion of the condensing tank.

Fig. 4. is a vertical sectional view en larged of the check valve, located in the branch of the overflow pipe which discharges into the boiler.

Similar reference. characters designate similar parts in the different views.

1 designates the body of an upright boiler having an open top normally closed by a cover 2, Fig. 2, which is secured by vertical bolts 3 to an annular peripheral flange 4 of an annular T-bar 5, over which is folded the upper edge of the body 1.

Encircling and spaced apart from the body 1 is a casing 6, which is disposed vertically and upon a stand 7, which supports a gas burner 8, which is supplied by a gas pipe 9. The heads of the bolts 3 rest upon the upper edge of the casing 6, thus supporting the upright boiler and providing a space between thet flange 4 and the upper edge of the casing 6, through whichgaseous prodnets of combustion, which pass upwardly from the burner 8 between the body 1 and the casing 6, may escape. Intermediate of the cover 2 and the body 1 is a rubber tubu lar gasket 10.

Encircling the casing 6 and spaced apart therefrom. and bearing against the outer' edge of the flange 4 is a band 11, between which has its lower end mounted 25. Normally the which and the casing 6 the gaseous products of combustion pass downwardly. Any suitable means may be employed to support the band 11, such as inwardly extending tongues .12, which rest upon the upper side of the flange 4, in the manner shown in Fig. 2.

Supported on the cover 2 are vertical posts 13 which support a cover 14 which closes the lower end of an upright tank 15, which has secured to and encircling it a T- shaped band 16, Fig. 3, having a horizontal peripheral annular flange 17, which is connected to the cover 14 by vertical bolts 18. A gasket 19 is inserted between the cover 14 and the body of the tank 15.

A water supply pipe 20 having a shut-oil valve 21 extends through the cover 2 and discharges into the boiler body 1.

'A water supply pipe 22 having a shut-off valve 23 extends through the cover 14 and discharges into the tank 15.

An overflow; pipe 24 extends vertically in the tank 15 to near the upper end thereof and through the cover 14, and outside said cover is provided with two discharge branches 25 and 26, provided respectively with a shut-off valve 27 and a suitable check valve 28, which opens toward the boiler 1. In Fig. 4, is shown a check valve which may serve the purpose. Referring to Fig. 4, 29 designates a vertically movable valve normally forced upwardly by a coil spring 30 against a seat 31 in the casing of the check valve 28. p

32 designates a steam conductor, which communicates through the cover 2 with the interior of the boiler 1 and which is provided with a shut-oil cock 33. The conductor 32 extends upwardly through the cover 14 and is provided in the tank 15 with a vertical condensing coil 34, through which the steam passes downwardly and is con-- densed to form distilled water which passes out of the conductor 32, the latter being extended below the coil 34 downwardly through the cover 14.

In the operation'of my invention, water entering the tank 15 through the conductor 22 becomes heated and rises and passes into the upper end of the overflow pipe 24. and thence downwardly through the branch 25, when the valve 27 is open. By regulating the valve 23, a predetermined volume of water at a predetermined temperature may be continually discharged from the'branch valve 29 of the check valve will be held firmly seated by steam pressure from the boiler l, the spring 30 being merely suflicient to support the weight of the valve 29. If the valve 27 is closed, the pressure of the Water in the tank 15 be ing greater than the steam pressure in the boiler, will force the valve 29 to the open position, and water will be fed into the boiler 1.

By regulating the valve 33 a pre-determined amount of steam will pass from the boiler 1 through the conductor 32 and will be condensed to form distilled water in the coil 34;, the latter being continually discharged from the conductor 82 for such purposes as it may be desired to be used.

It will be noted that the condensing tank 15 is carried by the cover 2 of the boiler, thus making a compact self-contained apparatus.

By having the gaseous products of combustion pass upwardly between the casing 6 and the boiler 1, and thence downwardly between the casing 6 and the band 11, great efliciency in heating is obtained with the elimination of Hues in the boiler. The supply pipe 20 is provided, so that water may be supplied to the boiler, in case that the valve 27 is kept open, thereby depriving the boiler of any Water supply through the branch 26. lVhen the valve 27 is closed, the valve 29 opens and hot water is supplied to the boiler through the branch 26.

I do not limit my invention to the structure shown and described, as modifications, within the scope of the appended claims, may be made without departing from the spirit of my invention.

WVhat I claim is 1. In a water heating apparatus, an upright boiler, an upright casing encircling and spaced apart from the boiler for re ceiving gaseous products of combustion, the

boiler having a peripheral flange extending outwardly beyond the casing and spaced apart from the upper edge of the casing, and a band embracing said flange and encircling and spaced apart from said casing.

2. In a water heating apparatus, an upflange, a cover for closing said top, and bolts connecting said flange and cover, an annular band embracing said flange, and a casing encircling the boiler between'the body and said band and spaced apart from the band and the body, and having its upper edge spaced apart from said flange.

3. I11 a water heating apparatus, a boiler comprising a body having a peripheral annular flange and having an open end adjacent to said flange, a cover for closing said open end and resting upon the body, bolts connecting the cover and flange, and a casing encircling and spaced apart from the body for receiving gaseous products of combustion and spaced apart from said flange and supporting said bolts upon its upper edge.

4;. In a water heating apparatus, a boiler comprising an upright body having an open top and a peripheral flange adjacent to said top, a cover for closing said top, and bolts connecting said cover and flange, and a casing encircling and spaced apart from the body and having its upper edge supporting said bolts and spaced apart from said flange.

5. In a Water heating apparatus, a boiler comprising an upright body having an open top and provided adjacent to said top with an annular peripheral flange, a cover for closing said top, and bolts connecting said flange and cover, an annular band embrac ing said flange, and a casing encircling and spaced apart from said body intermediate of said body and said band and spaced apart from the latter, the upper edge of the casing supporting said bolts. and being spaced apart from said flange, thereby forming a flue space for gaseous products of combustion through which said products of combustion can pass upwardly between the casing and the body, thence over the upper edge of the casing, and thence downwardly between the casing and the band.

In testimony whereof I have signed my name to this specification.

ROBERT S. MEARS. 

